SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
DSST Physical Sciences Principles
Start Test
Study First
Subjects
:
dsst
,
science
Instructions:
Answer 31 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Neglecting air resistance - a ball in free fall near the earth's surface will have...
Twice the work
Decreased
Total internal energy of an object
Increasing speed and constant acceleration
2. Electric power companies step up the voltage of generated power for transmission across the country because higher voltage...
Means less power is transmitted
Increases the energy
263 degrees kelvin
Sulfur
3. A temperature of -10 degrees celsius is equivalent to...
Might stay the same
263 degrees kelvin
Mechanical - chemical - and radiant energy
Newtons second principle of Universal Gravitation
4. The heat involved in the change of phase of phase from solid ice to liquid water is called...
Might stay the same
Heat of fusion
Third principle of Centripetal force
Difference between the heat supplied and the heat exhausted
5. The weight of one kilogram of iron on earth is...
Difference in the sped of light in water vs. air
Less on the moon
Difference between the heat supplied and the heat exhausted
Decreased
6. Circular motion requires centripetal force
Second principle of Centripetal force
First principle of Centripetal force
Newtons third principle of Universal Gravitation
Less on the moon
7. When you add heat to a substance - its temperature...
Remains unchanged
Newtons second principle of Universal Gravitation
Decreased
Might stay the same
8. Which is not one of the fundamental forces of nature...
Decreased
Universal
Waves and particles
Might stay the same
9. A ship travels 3 miles in 15 minutes what is its speed in miles per hour...
12 miles per hour
Remains unchanged
263 degrees kelvin
Difference between the heat supplied and the heat exhausted
10. The ozone hole results from...
Newtons third principle of Universal Gravitation
Less on the moon
Halogen radicals interfering in ozone synthesis
Third principle of Centripetal force
11. At a given speed - the centripetal force - the smaller the circle.
Third principle of Centripetal force
Might stay the same
Halogen radicals interfering in ozone synthesis
Means less power is transmitted
12. The gravitational force - two masses are directly proportional to the mass of each object
Means less power is transmitted
Newtons second principle of Universal Gravitation
Waves and particles
Less on the moon
13. The work that a heat engine is able to accomplish is ideally equivalent to the
5 m/s
Difference between the heat supplied and the heat exhausted
263 degrees kelvin
Newtons first principle of Universal Gravitation
14. Raising an auto in a service station requires work. Raising it twice as high requires...
Means less power is transmitted
Decreased
Twice the work
Momentum
15. If a charging elephant has kinetic energy - it must also have...
Heat of fusion
Waste heat for secondary uses
Momentum
Remains unchanged
16. The larger the centripetal force - the faster an object travels in a circle of a given size
Near a maximum
Second principle of Centripetal force
Heat of fusion
263 degrees kelvin
17. In a generator - the flow of electrons (current) is created by...
Sulfur
Newtons third principle of Universal Gravitation
263 degrees kelvin
Movement
18. The reason that a spear fisherman cannot see where the fish is actually located is...
Near a maximum
Difference in the sped of light in water vs. air
Decreased
Less on the moon
19. In burning coal - what contaminant is of major concern as a pollutant...
Heat of fusion
Waste heat for secondary uses
Sulfur
Universal
20. A 5 kg fish that is swimming toward it at a velocity that brings both fish to a halt. What is the speed of the smaller fish?
12 miles per hour
5 m/s
Twice the work
Increases the energy
21. Electromagnetic radiation can be viewed as...
Waves and particles
Third principle of Centripetal force
Remains unchanged
Near a maximum
22. All objects with mass are attracted to another by the gravitational force
12 miles per hour
Newtons first principle of Universal Gravitation
Decreased
Twice the work
23. From the 50's and to the 70's - the pH of rain in the northeast had..
Decreased
Newtons first principle of Universal Gravitation
Remains unchanged
Waves and particles
24. Electrical energy can be converted to...
Second principle of Centripetal force
Mechanical - chemical - and radiant energy
First principle of Centripetal force
Halogen radicals interfering in ozone synthesis
25. Heat is the...
263 degrees kelvin
Total internal energy of an object
Near a maximum
Heat of fusion
26. cogeneration uses...
First principle of Centripetal force
Total internal energy of an object
Newtons third principle of Universal Gravitation
Waste heat for secondary uses
27. Increasing the frequency of light
Second principle of Centripetal force
Increases the energy
Difference between the heat supplied and the heat exhausted
Momentum
28. The theoretical production curve of oil indicates oil production is...
Near a maximum
Sulfur
Universal
Waste heat for secondary uses
29. If the mass of a cart full of groceries decreases of half and its speed doubles - the momentum of the cart...
Remains unchanged
Decreased
Universal
Waste heat for secondary uses
30. The gravitational force between two masses is inversely proportional to the square of the distance between those two objects.
Near a maximum
Newtons third principle of Universal Gravitation
Third principle of Centripetal force
Disorder
31. Entropy refers to...
Disorder
Difference between the heat supplied and the heat exhausted
Total internal energy of an object
Less on the moon